Boost cellular energy and slow the aging process from within.
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Trusted by 50,000+ health-focused customers
Lean & Strong – Body Recomposition Stack
$153.99
$133.20
SAVE
$0.21
Build muscle, sensitize insulin, and balance metabolic hormones for lean, strong body recomposition.
Builds lean muscle and strength
Improves insulin sensitivity
Balances metabolic hormones
Supports healthy body composition
What You Get
Creatine Monohydrate
Strength and lean muscle support
$45.99
$38.44
Berberine
Natural insulin sensitizer
$53.99
$44.88
Inositol Balance
Metabolic hormone balance
$55.00
$46.88
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first week, expect better strength and steadier energy. By week two, cravings drop and body composition starts shifting. By day 30, most users report leaner appearance, stronger lifts, and a clear sense that their body is responding differently to food and training.
WHAT'S INCLUDED
Creatine Monohydrate, Berberine, and Inositol Balance — a unique recomposition stack that addresses muscle, insulin, and hormones together.
HOW DOES IT WORK
Creatine drives strength and lean muscle gain. Berberine acts as a natural insulin sensitizer, supporting how your body partitions calories. Inositol balances metabolic hormones tied to body composition. Together, they create the conditions for true recomposition.
INGREDIENTS
Micronized creatine monohydrate, berberine HCl, and a myo-inositol and D-chiro-inositol blend. Free from stimulants and artificial fillers.
The Recomposition Stack that delivered
Thousands of active adults use Lean & Strong to build muscle while leaning out, the kind of body change most stacks promise but rarely deliver.
"Stronger and leaner at the same time"
"I've been chasing recomposition for years. This stack is what finally moved the needle."
— Tyler J.
Verified Customer
"Insulin sensitivity is huge"
"I felt the difference within two weeks, fewer cravings, steadier energy, and the gym progress is clear."
— Patrick H.
Verified Customer
"Different from any other stack"
"Creatine plus berberine isn't something you see often. The combination really works for body composition."
— Sasha M.
Verified Customer
"Body changed in 6 weeks"
"Lifts went up, waist went down. I didn't change my training much, the supplements did the work."
— Marcus T.
Verified Customer
One Simple Kit, Three Powerful Phases
30 days to recompose your body, leaner, stronger.
Days 1–10
PHASE 1:
Sensitize Insulin
Berberine and inositol improve how your body partitions nutrients. Cravings drop.
Days 11–20
PHASE 2:
Build Strength
Creatine drives strength and lean muscle. Lifts climb, body composition shifts.
Days 21–30
PHASE 3:
Compound the Results
Recomposition compounds. Stronger, leaner, more energized, visibly.
The Real Problem Isn't Calories. It's Partitioning.
Cutting calories doesn't recompose your body. It's how your body uses those calories — to muscle or to fat — that determines results.
Insulin Disregulation
Even mild insulin resistance pushes calories toward fat storage instead of muscle.
Slow Muscle Building
Without enough creatine, your body can't maximize strength or recovery — and muscle growth stalls.
Hormonal Imbalance
Out-of-balance metabolic hormones make body recomposition nearly impossible no matter how clean you eat.
Cravings and Energy Crashes
Blood sugar swings drive cravings and energy dips that derail any recomposition plan.
A Complete System for Body Recomposition
Three products that address the three real levers of recomposition: muscle, insulin, and hormones.
Build Muscle, Not Fat
Creatine is the most studied supplement for strength and lean muscle gain, it works.
Sensitize Insulin Naturally
Berberine improves insulin sensitivity, helping your body partition calories toward muscle.
Balance Metabolic Hormones
Inositol supports the hormonal environment your body needs to actually recompose.
Cleaner Energy
Steady blood sugar means fewer cravings, more consistent training, and better results.
What Makes Lean & Strong Different
A unique combination rarely seen on the market, built specifically for body recomposition.
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Formulated by Nathaly Marcus — Trusted by Millions
Nathaly Marcus is a functional medicine practitioner and supplement formulator trusted by millions for her evidence-based, no-BS approach to health.
She created the Sugar Reset Program after seeing countless people struggle with cravings and metabolic dysfunction, not from lack of willpower, but from broken biology.
Every FortCore formula is built to her exact standards: clinical doses, third-party testing, and ingredients she uses herself.
When you choose this program, you're getting a system designed by someone who refuses to compromise on quality or results.
✨ Lean, strong, recomposing. Three products to change how your body uses food and training.
Slide 1 of 1
Trusted by 50,000+ health-focused customers
Lean & Strong – Body Recomposition Stack
$153.99
$133.20
SAVE
$0.21
Build muscle, sensitize insulin, and balance metabolic hormones for lean, strong body recomposition.
Builds lean muscle and strength
Improves insulin sensitivity
Balances metabolic hormones
Supports healthy body composition
What You Get
Creatine Monohydrate
Strength and lean muscle support
$45.99
$38.44
Berberine
Natural insulin sensitizer
$53.99
$44.88
Inositol Balance
Metabolic hormone balance
$55.00
$46.88
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first week, expect better strength and steadier energy. By week two, cravings drop and body composition starts shifting. By day 30, most users report leaner appearance, stronger lifts, and a clear sense that their body is responding differently to food and training.
WHAT'S INCLUDED
Creatine Monohydrate, Berberine, and Inositol Balance — a unique recomposition stack that addresses muscle, insulin, and hormones together.
HOW DOES IT WORK
Creatine drives strength and lean muscle gain. Berberine acts as a natural insulin sensitizer, supporting how your body partitions calories. Inositol balances metabolic hormones tied to body composition. Together, they create the conditions for true recomposition.
INGREDIENTS
Micronized creatine monohydrate, berberine HCl, and a myo-inositol and D-chiro-inositol blend. Free from stimulants and artificial fillers.